The Basenji dog is the only dog that is not able to bark.
4
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9